Head to head
Kepler vs Hubble
Because of its more extensive light-capturing capabilities, Hubble can make vague estimations of an exoplanet’s atmosphere. This is due to Hubble’s ability to capture near-infrared, visible and ultraviolet light, unlike Kepler’s extremely narrow wavelength band of 430-890 nanometres.
When you compare their size and mass, Hubble is grander in every way. Hubble is
8.6 metres (28.2 feet) longer, 11,195 kilograms (24,681 pounds) heavier and the primary mirror is 1-metre (3.28 feet) larger, which provides a collecting area that is 3.79 metres squared (41 square feet) larger.